#include<bits/stdc++.h>
using namespace std;
int n,max_=0;
map<int,int>mp;
int main()
{
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    scanf("%d",&n);
    for(int i=0;i<n;i++)
    {
        int x;
        scanf("%d",&x);
        mp[x]+=1;
    }
    for(auto i:mp) if(i.second>max_) max_=i.second;
    printf("%d",max_);
    fclose(stdin);
    fclose(stdout);
    return 0;
}
